Summary:

v0.7.7. This is a small emulator of Zabbix agent for AS/400 platform. Main purpose: to access AS/400-specific objects (message queues, output queues, subsystems and jobs). It's written on Java using the IBM Toolbox for Java API and library, implemented as Jar-file ready to start (see details below).

Limitations:

• lack of IPv6 (IPv4 only supported);
• no encryption (sorry, no plans);
• only limited subset of standard metrics supported, and even in this case: some of them have a bit different semantics of parameters;
• some config file's parameters are recognized, but really ignored (PidFile, EnableRemoteCommand, Alias, AllowRoot, Include, UserParameter and LoadModule);
• configuration parameter ListenIP allows to set only one IP-address (contrary to list in original Zabbix-agent);
• minimum value for the StartAgents parameter is 1 (i.e. active-only mode is not supported);
• during message queue monitoring the integer part only of the message's EventID is transferred to Zabbix-server. It is restriction of Zabbix database schema (it has the integer type for the appropriate attribute). However, it's possible to use a regular expression in the item's key to filter by the full text value of EventID.

Requirements:

As this is a Java-program, you need a JRE to use it :-) This Jar-file has been compiled using JDK 1.8, but for running under JRE 1.7. So, you need minimum Java version 1.7. I tested it for monitoring our AS/400 system v 7.1; but it should, probably, work on other versions also.

I tried to have minimum dependencies, but some still exist. You need 2 libraries: IBM Toolbox for Java (jt400.jar) and Simple JSON parser (json-simple-1.1.1.jar). The first library is included in the AS/400 operating system, or you can download an open-source version (JTOpen) from the sourceforge site (link, you need only jt400.jar file from the archive). The second library is a tiny (<25KB) file for parsing JSON text, you can download it here (link, you need the json-simple-1.1.1.jar file only).
Really, you need the following files and directories:

• jt400.jar;
• json-simple-1.1.1.jar;
• ZabbixAgent.jar (in fact, Zabbix-agent emulator, this project);
• config file for the agent (default is "zabbix_agentd.conf" in current directory). Example is included, check and modify it for your environment;
• directory where the log file could be written (the only place where the write access is required).
  
  

File listing:

• ZabbixAgent.jar – Zabbix agent emulator;
• zabbix_agentd.conf – example of config file;
• readme